Six separate takes on a controversial new film — not from a film critic but from a photographer who considers various aspects of how we view pictures and the medium. The new documentary The Stringer, released Nov. 28 on Netflix, refutes more than 50 years of celebrating Nick Út’s authorship of the iconic “ Napalm Girl ”  photograph from the coverage of the Vietnam War. Since the film saw its first public showing at Sundance, passions pro and con have been running very high ab